BITSAT 2013 Paper

Section: Mathematics

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Question : 83 of 150

Marks: +1, -0

If cos 7θ = cos θ – sin 4θ, then the general value of θ is

nπ
6
,
nπ
3
+ (−1)n
π
18
nπ
3
,
nπ
3
+ (−1)n
π
18
nπ
4
,
nπ
3
±
π
18
nπ
4
,
nπ
3
+ (−1)n
π
18

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